B3 - Mutations: The Basics

What is a mutation?

A mutation is a change in the DNA base sequence.

What happens if a mutation occurs within a gene?

The production of the protein it codes for may be disrupted, or another protein may be produced instead.

Why are most mutations harmful?

• producing the wrong protein can prevent an important reaction from occuring.
• producing no protein at all can also stop a reaction from occuring.
• if a mutation occurs in reproductive…